added unit tests for the SQLite.py keyList function
added unit tests for the SQLite.py keyList function

funginstitute/patentprocessor,yngcan/patentprocessor,nikken1/patentprocessor,funginstitute/patentprocessor,yngcan/patentprocessor,nikken1/patentprocessor,funginstitute/patentprocessor,nikken1/patentprocessor,yngcan/patentprocessor